Donald Jans

Born : 1932 Cat. M90 Ultrarunner since 1990

DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.

DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details

Countries visited ?

Canada

United States

85,2%

Rank quotient ?This runner's calculation uses 74 eligible race(s): Σ(rank − 1) = 7 869; Σ finishers = 9 232. 7 869 / 9 232 × 100 = 85.24%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed74

Km — ultra races6 672 km

> 100 km17

> 160 km14

> 200 km1

> 24h16

> 48h12

Longest race205,7 km

38th Across the Years, 6 days — 28/12/2022

Km per year (ultra races)

480

2022

298

2023

100

2024

164

2025

2026

Race types (share of distance)

Road35,5%

Trail64,5%

Wins & podiums (ultra)

🏆 Win0

🏆 Win M1

🏅 Top 31

🏅 Top 3 M3

Longest winning streak0

Current streak0

Records

50 km5h37'06 100 km19h26'20 50 mi10h14'05 100 mi28h12'19 12 h48,23 km 24 h122,31 km 48 h83,17 km 6 d205,72 km

HISTORY

74 race(s)

Date		Race	Perf.	Rk
2025
28.08	92h	11th A Race for the Ages	96.560 km	92
04.04	48h	5th The Country Mile 48 Hour Race	67.431 km	219
2024
29.08	91h	10th A Race for the Ages	99.779 km	84
2023
28.12	6d	39th Across the Years, 6 days	167.758 km	52
31.08	90h	9th A Race for the Ages	130.356 km	78
2022
28.12	6d	38th Across the Years, 6 days	205.716 km	44
01.09	90h	8th A Race for the Ages	191.511 km	22
08.04	48h	2nd The Country Mile 48 Hour Race	83.170 km	154
2021
08.09	89h	7th A Race for the Ages	185.074 km	27
2020
03.09	88h	6th A Race for the Ages	162.543 km	31
04.07	24h	9th Merrill's Mile 24 Hour Run	63.742 km	16
2019
28.08	87h	5th A Race for the Ages	175.418 km	48
2018
30.08	86h	4th A Race for the Ages	193.121 km	42
04.08	12h	3rd River to Sea 12 Hour Race	48.232 km	36
2009
11.04	50km	15th Croom Trail 50K I'm Not A Fool Run	8:57:57 h	60
21.02	50mi	4th Iron Horse 50 Mile Endurance Run	16:25:00 h	20
2008
28.12	50km	Star-Lit-Luna 50 km	8:26:00 h	12
27.12	50km	1st Chica-deca-lunaless 50 km	9:20:00 h	10
29.11	50km	6th Derby 50k Ultra Run	8:21:44 h	53
27.09	24h	3rd Hinson Lake 24 Hour Ultra Classic	122.310 km	15
19.07	50km	15th Big Butt 50 km	8:09:29 h	15
14.06	50mi	14th Bethel Hill Moonlight Boogie 50 Miles	15:10:00 h	29
01.03	100km	3rd Iron Horse 100 km Endurance Run	19:26:20 h	11
2007
29.09	24h	2nd Hinson Lake 24 Hour Ultra Classic	100.294 km	34
21.07	50km	14th Big Butt 50 km	7:32:59 h	23
16.06	50mi	13th Bethel Hill Moonlight Boogie 50 Miles	13:39:00 h	38
21.04	50km	5th Crowders Mountain 50K	9:34:04 h	22
2006
23.09	24h	1st Hinson Lake 24 Hour Ultra Classic	97.848 km	26
08.07	50km	12th Rattlesnake Trail 50K Ultrarun	9:27:54 h	88
17.06	50mi	12th Bethel Hill Moonlight Boogie 50 Miles	14:18:33 h	29
29.04	50km	4th Crowders Mountain 50K	9:17:16 h	22
08.04	50mi	12th Umstead Endurance Run 50 Miles	13:51:23 h	81
25.03	50km	3rd Guana River 50K Trail Run	8:24:19 h	19
25.02	50km	2nd 50km Silver Comet Ultra Run	8:09:35 h	45
04.02	50mi	14th Rocky Raccoon 50 Mile Trail Run	15:04:10 h	53
2005
05.10	40mi	1st Triple Lakes Trail Race	10:54:17 h	43
17.09	50km	3rd Great Eastern Endurance Run 50 km	10:49:40 h	90
13.08	8h	15th Howl at the Moon 8h Run	50.066 km	111
09.07	50km	11th Rattlesnake Trail 50K Ultrarun	9:46:40 h	87
2003
05.04	100mi	9th Umstead Endurance Run 100 Miles	29:35:45 h	77
01.03	50mi	23th Carl Touchstone Memorial Mississippi Trail 50 Mile	12:16:17 h	35
2002
13.07	50km	8th Rattlesnake Trail 50K Ultrarun	8:42:39 h	123
06.04	100mi	8th Umstead Endurance Run 100 Miles	28:53:26 h	73
2001
08.12	100mi	3rd Ancient Oaks 100 Mile Run	31:38:00 h	2 🥈
01.09	100mi	6th Haliburton Forest 100 Mile Race	29:22:05 h	25
16.06	50mi	7th Bethel Hill Moonlight Boogie 50 Miles	11:52:00 h	9
07.04	100mi	7th Umstead Endurance Run 100 Miles	29:20:20 h	36
2000
09.12	50mi	18th Tallahassee Ultra Distance Classic 50M	10:14:05 h	6
04.11	50mi	38th JFK 50 Mile	12:51:12 h	648
17.06	50mi	6th Bethel Hill Moonlight Boogie 50 Miles	12:55:00 h	13
20.05	50km	2nd Capon Valley 50K Run	7:27:50 h	76
05.03	50km	Knight Trail 50 km	6:43:04 h	40
1999
20.11	50mi	37th JFK 50 Mile	13:38:50 h	840
25.09	50km	8th John Holmes 50k Trail Run	7:01:32 h	44
10.04	50mi	5th Umstead Endurance Run 50 Miles	11:37:23 h	60
28.02	50km	Knight Trail 50 km	5:37:06 h	28
1998
21.11	50mi	36th JFK 50 Mile	12:46:52 h	696
05.09	50km	3rd Landsford Canal 50 km	7:37:00 h	28
04.04	100mi	4th Umstead Endurance Run 100 Miles	29:09:57 h	54
1997
22.11	50mi	35th JFK 50 Mile	12:56:18 h	668
05.04	50mi	3rd Umstead Endurance Run 50 Miles	11:59:00 h	46
01.03	50km	17th Carl Touchstone Memorial Mississippi Trail 50 km	7:31:15 h	52
1996
23.11	50mi	34th JFK 50 Mile	13:52:27 h	621
04.05	40mi	18th Strolling Jim 40 Mile	8:35:17 h	58
30.03	100mi	2nd Umstead Endurance Run 100 Miles	28:12:19 h	30
02.03	50mi	16th Carl Touchstone Memorial Mississippi Trail 50 Mile	10:15:00 h	12
1995
18.11	50mi	33rd JFK 50 Mile	13:05:33 h	439
01.04	50mi	1st Croom Trail 50 Mile Fools Run	10:51:49 h	20
1994
19.11	50mi	32nd JFK 50 Mile	11:52:02 h	361
07.05	40mi	16th Strolling Jim 40 Mile	8:16:36 h	80
1993
20.11	50mi	31st JFK 50 Mile	12:17:29 h	291
17.04	50mi	1st Bull Run Run 50 Miler	13:07:00 h	52
1990
27.10	50mi	8th Mountain Masochist 50 Mile Trail Run	11:57:44 h	128
19.05	50mi	9th Ice Age Trail 50 Mile Run	11:33:25 h	191

Filter

Runner	Races in common

DUV-index calculation details

#	Date	Race	Credited km	DUV-index+
✓ 1	28/12/2022	38th Across the Years, 6 days	205,72	×3
✓ 2	30/8/2018	4th A Race for the Ages	193,12	×3
✓ 3	1/9/2022	8th A Race for the Ages	191,51	×2
✓ 4	8/9/2021	7th A Race for the Ages	185,07	×2
✓ 5	28/8/2019	5th A Race for the Ages	175,42	×2
✓ 6	28/12/2023	39th Across the Years, 6 days	167,76	×2
✓ 7	3/9/2020	6th A Race for the Ages	162,54	×2
✓ 8	5/4/2003	9th Umstead Endurance Run 100 Miles	160,93	×2
✓ 9	6/4/2002	8th Umstead Endurance Run 100 Miles	160,93	×2
✓ 10	8/12/2001	3rd Ancient Oaks 100 Mile Run	160,93	×2
✓ 11	1/9/2001	6th Haliburton Forest 100 Mile Race	160,93	×2
✓ 12	7/4/2001	7th Umstead Endurance Run 100 Miles	160,93	×2
✓ 13	4/4/1998	4th Umstead Endurance Run 100 Miles	160,93	×2
✓ 14	30/3/1996	2nd Umstead Endurance Run 100 Miles	160,93	×2
✓ 15	31/8/2023	9th A Race for the Ages	130,36	×2
✓ 16	27/9/2008	3rd Hinson Lake 24 Hour Ultra Classic	122,31	×1
✓ 17	29/9/2007	2nd Hinson Lake 24 Hour Ultra Classic	100,29	×1
✓ 18	1/3/2008	3rd Iron Horse 100 km Endurance Run	100,00	×1
✓ 19	29/8/2024	10th A Race for the Ages	99,78	×1
✓ 20	23/9/2006	1st Hinson Lake 24 Hour Ultra Classic	97,85	×1
✓ 21	28/8/2025	11th A Race for the Ages	96,56	×1
✓ 22	8/4/2022	2nd The Country Mile 48 Hour Race	83,17	×1
✓ 23	21/2/2009	4th Iron Horse 50 Mile Endurance Run	80,47	×1
✓ 24	14/6/2008	14th Bethel Hill Moonlight Boogie 50 Miles	80,47	×1
✓ 25	16/6/2007	13th Bethel Hill Moonlight Boogie 50 Miles	80,47	×1
✓ 26	17/6/2006	12th Bethel Hill Moonlight Boogie 50 Miles	80,47	×1
✓ 27	8/4/2006	12th Umstead Endurance Run 50 Miles	80,47	×1
✓ 28	4/2/2006	14th Rocky Raccoon 50 Mile Trail Run	80,47	×1
✓ 29	1/3/2003	23th Carl Touchstone Memorial Mississippi Trail 50 Mile	80,47	×1
✓ 30	16/6/2001	7th Bethel Hill Moonlight Boogie 50 Miles	80,47	×1
✓ 31	9/12/2000	18th Tallahassee Ultra Distance Classic 50M	80,47	×1
✓ 32	4/11/2000	38th JFK 50 Mile	80,47	×1
✓ 33	17/6/2000	6th Bethel Hill Moonlight Boogie 50 Miles	80,47	×1
✓ 34	20/11/1999	37th JFK 50 Mile	80,47	×1
✓ 35	10/4/1999	5th Umstead Endurance Run 50 Miles	80,47	×1
✓ 36	21/11/1998	36th JFK 50 Mile	80,47	×1
✓ 37	22/11/1997	35th JFK 50 Mile	80,47	×1
✓ 38	5/4/1997	3rd Umstead Endurance Run 50 Miles	80,47	×1
✓ 39	23/11/1996	34th JFK 50 Mile	80,47	×1
✓ 40	2/3/1996	16th Carl Touchstone Memorial Mississippi Trail 50 Mile	80,47	×1
✓ 41	18/11/1995	33rd JFK 50 Mile	80,47	×1
✓ 42	1/4/1995	1st Croom Trail 50 Mile Fools Run	80,47	×1
✓ 43	19/11/1994	32nd JFK 50 Mile	80,47	×1
✓ 44	20/11/1993	31st JFK 50 Mile	80,47	×1
✓ 45	17/4/1993	1st Bull Run Run 50 Miler	80,47	×1
✓ 46	27/10/1990	8th Mountain Masochist 50 Mile Trail Run	80,47	×1
✓ 47	19/5/1990	9th Ice Age Trail 50 Mile Run	80,47	×1
✓ 48	4/4/2025	5th The Country Mile 48 Hour Race	67,43	×1
✓ 49	5/10/2005	1st Triple Lakes Trail Race	64,37	×1
✓ 50	4/5/1996	18th Strolling Jim 40 Mile	64,37	×1
✓ 51	7/5/1994	16th Strolling Jim 40 Mile	64,37	×1
✓ 52	4/7/2020	9th Merrill's Mile 24 Hour Run	63,74	—
53	13/8/2005	15th Howl at the Moon 8h Run	50,07	—
54	11/4/2009	15th Croom Trail 50K I'm Not A Fool Run	50,00	—
55	28/12/2008	Star-Lit-Luna 50 km	50,00	—
56	27/12/2008	1st Chica-deca-lunaless 50 km	50,00	—
57	29/11/2008	6th Derby 50k Ultra Run	50,00	—
58	19/7/2008	15th Big Butt 50 km	50,00	—
59	21/7/2007	14th Big Butt 50 km	50,00	—
60	21/4/2007	5th Crowders Mountain 50K	50,00	—
61	8/7/2006	12th Rattlesnake Trail 50K Ultrarun	50,00	—
62	29/4/2006	4th Crowders Mountain 50K	50,00	—
63	25/3/2006	3rd Guana River 50K Trail Run	50,00	—
64	25/2/2006	2nd 50km Silver Comet Ultra Run	50,00	—
65	17/9/2005	3rd Great Eastern Endurance Run 50 km	50,00	—
66	9/7/2005	11th Rattlesnake Trail 50K Ultrarun	50,00	—
67	13/7/2002	8th Rattlesnake Trail 50K Ultrarun	50,00	—
68	20/5/2000	2nd Capon Valley 50K Run	50,00	—
69	5/3/2000	Knight Trail 50 km	50,00	—
70	25/9/1999	8th John Holmes 50k Trail Run	50,00	—
71	28/2/1999	Knight Trail 50 km	50,00	—
72	5/9/1998	3rd Landsford Canal 50 km	50,00	—
73	1/3/1997	17th Carl Touchstone Memorial Mississippi Trail 50 km	50,00	—
74	4/8/2018	3rd River to Sea 12 Hour Race	48,23	—